Applied through campus career services office, accepted for on-campus interview with alumni who works at SKP. Pleasant laid-back interview, mainly focused on clarifying my reasons for wanting to work for them and running through a 10 min case. Called back to final interview day in office. 15 min quantitative test (think SAT/GMAT algebraic word problems) + three interviews with three levels of staff, including partner. Quite confrontational tone in interviews, not very friendly/welcoming. Each interview was 1 hr - mix of fit and case. Questions centered around one or two key issues related to my profile which they wanted to drill down on. Cases very quantitative, very specifically focused on the type of work that SKP does - consumer pricing, B2B pricing, demand generation, increasing revenue. They want to see an ease with numbers, ability to think like a consultant - know what to ask of and say to client.